Optimize imports in AppNotificationSettings

import android.app.settings.SettingsEnums;

import android.content.Context;

import android.os.Bundle;

import android.text.TextUtils;

import android.util.Log;

import androidx.preference.Preference;

import androidx.preference.PreferenceGroup;

import androidx.preference.PreferenceScreen;

import androidx.recyclerview.widget.RecyclerView;

import com.android.internal.widget.LockPatternUtils;

import com.android.settings.R;

import com.android.settings.Utils;

import com.android.settingslib.core.AbstractPreferenceController;

import java.util.ArrayList;